Đang chuẩn bị liên kết để tải về tài liệu:
Trắc nghiệm về mạng máy tính ( wifi )

1) IP, a) b) c) d) e) f) and IPX operate at what layer? Presentation Application Session Transport Network Data Link 2) What is, or is becoming the topology of choice for networks? a) Bus b) Star c) Hierarchical d) Mesh 3) If computers are connected along a single cable this is called what type of topology? a) Star b) Bus c) Hierarchical d) Mesh 4) 1000Base-T is not a Category 5 cable. a) True b) False 5) Mesh topologies are the least expensive and are easier to maintain. a) True b) False 6) RJ-45 connectors are used with ? a) Coax b) Fiber-optic c). | 1 IP and IPX operate at what layer a Presentation b Application c Session d Transport e Network f Data Link 2 What is or is becoming the topology of choice for networks a Bus b Star c Hierarchical d Mesh 3 If computers are connected along a single cable this is called what type of topology a Star b Bus c Hierarchical d Mesh 4 1000Base-T is not a Category 5 cable. a True b False 5 Mesh topologies are the least expensive and are easier to maintain. a True b False 6 RJ-45 connectors are used with a Coax b Fiber-optic c 1000Base-LX d 10BASE-T 7 A repeater works at the physical layers. a True b False 8 In a star topology if a hub fails all computers connected to it will also be affected. a True b False 9 What type of topology is this a Mesh b Star c Hierarchical d Bus 10 Fiber networks use what kind of connectors a SC b BNC c RJ-45 d RJ-11 11 SC and ST connectors offer the same features as far as distance and reliability. a True b False 12 Which layer do Repeaters Hubs Transceivers and Amplifiers operate a Application b Session c Transport d Network e Data Link f Physical 13 What layer handles data frames between the Network and Physical layers a Presentation b Session c Transport d Network e Data Link f Physical 14 The number of computers on a bus network will NOT affect network performance. a True b False 15 A line break at any point along the trunk cable in a Bus network will result in total network failure. a True b False 16 DNS FTP SNMP SMTP and TELNET are all protocols that use what layer a Application b Session c Transport d Network e Data Link f Physical 17 What topology provides each device with a point-to-point connection to every other device in the network a Star b Bus c Mesh d Hierarchical 18 What OSI layer encodes and converts user information into binary data. Provides protocol conversion encryption and compression a Application b Presentation c Session d Transport e Network f Data Link 19 In a basic Ring topology if there is a line break or if you are .